The 'alien' beast , complete with elongated proboscis, has been filmed in seas off the east coast of China.

With its two bulging teeth, it is unlike any creature the trawlers have seen before so they have turned to local wildlife experts for help.

The video now being shared tens of thousands of time on Chinese social media platform Sina Weibo shows the grey sea creature with smooth, glossy skin, which its captors described as being "dolphin-like".

However, the animal found in the sea near Zhoushan City, in East China’s Zhejiang Province, did not have a fin, and local fishermen did not hide their shock and even fear at seeing the bizarre marine animal for the first time.

This beast has baffled boatmen (Image: CEN)

The animal had apparently been caught in the fishermen’s large nets and had reportedly already died when it floated to the surface and was then spotted by stunned locals.

Read more:

Reports said the animal was hauled back to shore and local wildlife experts were called in to identify the strange catch.

"Bo Wu", a Chinese wildlife magazine, said that the animal found near Mount Putuo, an island under the administration of Zhoushan City, was most likely a member of the beaked whale family.

The mysterious creature has an elongated proboscis (Image: CEN)

The animal was also most likely a young whale, as the species is capable of growing several times larger.

The beaked whale is rarely seen in Chinese seas and is not considered to be endangered.